Knitted net for round balers

Abstract

A knitted net (1) for round balers comprises a plurality of equidistant chains (2), arranged parallel to a longitudinal direction of development. Each chain (2) comprises a plurality of knots (3) placed at regular intervals. The adjacent chains (2) are connected to each other by transverse threads (4), at the knots (3). Each transverse thread (4) comprises a plurality of segments (5). In particular, each segment (5) develops between a first knot (3) of a chain (2) and a second knot (3) of an adjacent chain (2), located at a position preceding or following the first knot (3). Each chain (2) comprises a single longitudinal thread (6).

1 - 10 . (canceled) 
     
     
         11 . A knitted net for round balers comprising a plurality of chains arranged parallel to a longitudinal direction of development, each chain being equidistant from two adjacent chains, said chains each having a series of knots, the knots of the chains being arranged in a grid along a first direction parallel to the longitudinal direction and along a second direction perpendicular to the first direction; a plurality of transverse threads each arranged between two adjacent chains, each transverse thread comprising a plurality of segments each developing between a first knot of a chain and a second knot located on an adjacent chain, the second knot being located at a position preceding or following the first knot along the first direction; each chain comprising a single longitudinal thread. 
     
     
         12 . The net according to  claim 11 , wherein each longitudinal thread has a rectangular cross-section having a height comprised between 45 and 60 μm, preferably between 51 and 55 μm, a width comprised between 1.7 and 2.6 mm, preferably between 2.0 and 2.3 mm. 
     
     
         13 . The net according to  claim 12 , wherein the height and the width of the cross-section of the longitudinal thread are equal to 53 μm and 2.165 mm, respectively. 
     
     
         14 . The net according to  claim 11 , wherein each longitudinal thread is made with a mixture of polymers comprising at least HDPE and polypropylene. 
     
     
         15 . The net according to  claim 11 , wherein the longitudinal threads and the transverse threads are made of different materials. 
     
     
         16 . The net according to  claim 15 , wherein the mixture of polymers with which the longitudinal threads are made comprises at least 3% by weight of polypropylene. 
     
     
         17 . The net according to  claim 11 , wherein the distance between two adjacent knots along the second direction is comprised between 5.07 cm and 5.09 cm. 
     
     
         18 . The net according to  claim 11 , wherein the distance between two adjacent knots along the first direction is comprised between 3.02 cm and 3.03 cm. 
     
     
         19 . The net according to  claim 11 , wherein said net comprises a number of longitudinal threads comprised between 20 and 30, preferably equal to 25. 
     
     
         20 . A method for making a knitted net for round balers according to  claim 11 , the method comprising the steps of:
 producing a film of polymeric material;   separating the film of polymeric material into a plurality of chains each comprising a single longitudinal thread;   knitting the strips by means of a weaving machine for the production of the net;   winding the net onto a reel.